path: root/include/uapi/drm/drm_fourcc.h

/*
 * Copyright 2011 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef DRM_FOURCC_H
#define DRM_FOURCC_H

#include "drm.h"

#if defined(__cplusplus)
extern "C" {
#endif

/**
 * DOC: overview
 *
 * In the DRM subsystem, framebuffer pixel formats are described using the
 * fourcc codes defined in `include/uapi/drm/drm_fourcc.h`. In addition to the
 * fourcc code, a Format Modifier may optionally be provided, in order to
 * further describe the buffer's format - for example tiling or compression.
 *
 * Format Modifiers
 * ----------------
 *
 * Format modifiers are used in conjunction with a fourcc code, forming a
 * unique fourcc:modifier pair. This format:modifier pair must fully define the
 * format and data layout of the buffer, and should be the only way to describe
 * that particular buffer.
 *
 * Having multiple fourcc:modifier pairs which describe the same layout should
 * be avoided, as such aliases run the risk of different drivers exposing
 * different names for the same data format, forcing userspace to understand
 * that they are aliases.
 *
 * Format modifiers may change any property of the buffer, including the number
 * of planes and/or the required allocation size. Format modifiers are
 * vendor-namespaced, and as such the relationship between a fourcc code and a
 * modifier is specific to the modifer being used. For example, some modifiers
 * may preserve meaning - such as number of planes - from the fourcc code,
 * whereas others may not.
 *
 * Vendors should document their modifier usage in as much detail as
 * possible, to ensure maximum compatibility across devices, drivers and
 * applications.
 *
 * The authoritative list of format modifier codes is found in
 * `include/uapi/drm/drm_fourcc.h`
 */

#define fourcc_code(a, b, c, d) ((__u32)(a) | ((__u32)(b) << 8) | \
				 ((__u32)(c) << 16) | ((__u32)(d) << 24))

#define DRM_FORMAT_BIG_ENDIAN (1U<<31) /* format is big endian instead of little endian */

/* Reserve 0 for the invalid format specifier */
#define DRM_FORMAT_INVALID	0

/* color index */
#define DRM_FORMAT_C8		fourcc_code('C', '8', ' ', ' ') /* [7:0] C */

/* 8 bpp Red */
#define DRM_FORMAT_R8		fourcc_code('R', '8', ' ', ' ') /* [7:0] R */

/* 16 bpp Red */
#define DRM_FORMAT_R16		fourcc_code('R', '1', '6', ' ') /* [15:0] R little endian */

/* 16 bpp RG */
#define DRM_FORMAT_RG88		fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
#define DRM_FORMAT_GR88		fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */

/* 32 bpp RG */
#define DRM_FORMAT_RG1616	fourcc_code('R', 'G', '3', '2') /* [31:0] R:G 16:16 little endian */
#define DRM_FORMAT_GR1616	fourcc_code('G', 'R', '3', '2') /* [31:0] G:R 16:16 little endian */

/* 8 bpp RGB */
#define DRM_FORMAT_RGB332	fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */
#define DRM_FORMAT_BGR233	fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */

/* 16 bpp RGB */
#define DRM_FORMAT_XRGB4444	fourcc_code('X', 'R', '1', '2') /* [15:0] x:R:G:B 4:4:4:4 little endian */
#define DRM_FORMAT_XBGR4444	fourcc_code('X', 'B', '1', '2') /* [15:0] x:B:G:R 4:4:4:4 little endian */
#define DRM_FORMAT_RGBX4444	fourcc_code('R', 'X', '1', '2') /* [15:0] R:G:B:x 4:4:4:4 little endian */
#define DRM_FORMAT_BGRX4444	fourcc_code('B', 'X', '1', '2') /* [15:0] B:G:R:x 4:4:4:4 little endian */

#define DRM_FORMAT_ARGB4444	fourcc_code('A', 'R', '1', '2') /* [15:0] A:R:G:B 4:4:4:4 little endian */
#define DRM_FORMAT_ABGR4444	fourcc_code('A', 'B', '1', '2') /* [15:0] A:B:G:R 4:4:4:4 little endian */
#define DRM_FORMAT_RGBA4444	fourcc_code('R', 'A', '1', '2') /* [15:0] R:G:B:A 4:4:4:4 little endian */
#define DRM_FORMAT_BGRA4444	fourcc_code('B', 'A', '1', '2') /* [15:0] B:G:R:A 4:4:4:4 little endian */

#define DRM_FORMAT_XRGB1555	fourcc_code('X', 'R', '1', '5') /* [15:0] x:R:G:B 1:5:5:5 little endian */
#define DRM_FORMAT_XBGR1555	fourcc_code('X', 'B', '1', '5') /* [15:0] x:B:G:R 1:5:5:5 little endian */
#define DRM_FORMAT_RGBX5551	fourcc_code('R', 'X', '1', '5') /* [15:0] R:G:B:x 5:5:5:1 little endian */
#define DRM_FORMAT_BGRX5551	fourcc_code('B', 'X', '1', '5') /* [15:0] B:G:R:x 5:5:5:1 little endian */

#define DRM_FORMAT_ARGB1555	fourcc_code('A', 'R', '1', '5') /* [15:0] A:R:G:B 1:5:5:5 little endian */
#define DRM_FORMAT_ABGR1555	fourcc_code('A', 'B', '1', '5') /* [15:0] A:B:G:R 1:5:5:5 little endian */
#define DRM_FORMAT_RGBA5551	fourcc_code('R', 'A', '1', '5') /* [15:0] R:G:B:A 5:5:5:1 little endian */
#define DRM_FORMAT_BGRA5551	fourcc_code('B', 'A', '1', '5') /* [15:0] B:G:R:A 5:5:5:1 little endian */

#define DRM_FORMAT_RGB565	fourcc_code('R', 'G', '1', '6') /* [15:0] R:G:B 5:6:5 little endian */
#define DRM_FORMAT_BGR565	fourcc_code('B', 'G', '1', '6') /* [15:0] B:G:R 5:6:5 little endian */

/* 24 bpp RGB */
#define DRM_FORMAT_RGB888	fourcc_code('R', 'G', '2', '4') /* [23:0] R:G:B little endian */
#define DRM_FORMAT_BGR888	fourcc_code('B', 'G', '2', '4') /* [23:0] B:G:R little endian */

/* 32 bpp RGB */
#define DRM_FORMAT_XRGB8888	fourcc_code('X', 'R', '2', '4') /* [31:0] x:R:G:B 8:8:8:8 little endian */
#define DRM_FORMAT_XBGR8888	fourcc_code('X', 'B', '2', '4') /* [31:0] x:B:G:R 8:8:8:8 little endian */
#define DRM_FORMAT_RGBX8888	fourcc_code('R', 'X', '2', '4') /* [31:0] R:G:B:x 8:8:8:8 little endian */
#define DRM_FORMAT_BGRX8888	fourcc_code('B', 'X', '2', '4') /* [31:0] B:G:R:x 8:8:8:8 little endian */

#define DRM_FORMAT_ARGB8888	fourcc_code('A', 'R', '2', '4') /* [31:0] A:R:G:B 8:8:8:8 little endian */
#define DRM_FORMAT_ABGR8888	fourcc_code('A', 'B', '2', '4') /* [31:0] A:B:G:R 8:8:8:8 little endian */
#define DRM_FORMAT_RGBA8888	fourcc_code('R', 'A', '2', '4') /* [31:0] R:G:B:A 8:8:8:8 little endian */
#define DRM_FORMAT_BGRA8888	fourcc_code('B', 'A', '2', '4') /* [31:0] B:G:R:A 8:8:8:8 little endian */

#define DRM_FORMAT_XRGB2101010	fourcc_code('X', 'R', '3', '0') /* [31:0] x:R:G:B 2:10:10:10 little endian */
#define DRM_FORMAT_XBGR2101010	fourcc_code('X', 'B', '3', '0') /* [31:0] x:B:G:R 2:10:10:10 little endian */
#define DRM_FORMAT_RGBX1010102	fourcc_code('R', 'X', '3', '0') /* [31:0] R:G:B:x 10:10:10:2 little endian */
#define DRM_FORMAT_BGRX1010102	fourcc_code('B', 'X', '3', '0') /* [31:0] B:G:R:x 10:10:10:2 little endian */

#define DRM_FORMAT_ARGB2101010	fourcc_code('A', 'R', '3', '0') /* [31:0] A:R:G:B 2:10:10:10 little endian */
#define DRM_FORMAT_ABGR2101010	fourcc_code('A', 'B', '3', '0') /* [31:0] A:B:G:R 2:10:10:10 little endian */
#define DRM_FORMAT_RGBA1010102	fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */
#define DRM_FORMAT_BGRA1010102	fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */

/*
 * Floating point 64bpp RGB
 * IEEE 754-2008 binary16 half-precision float
 * [15:0] sign:exponent:mantissa 1:5:10
 */
#define DRM_FORMAT_XRGB16161616F fourcc_code('X', 'R', '4', 'H') /* [63:0] x:R:G:B 16:16:16:16 little endian */
#define DRM_FORMAT_XBGR16161616F fourcc_code('X', 'B', '4', 'H') /* [63:0] x:B:G:R 16:16:16:16 little endian */

#define DRM_FORMAT_ARGB16161616F fourcc_code('A', 'R', '4', 'H') /* [63:0] A:R:G:B 16:16:16:16 little endian */
#define DRM_FORMAT_ABGR16161616F fourcc_code('A', 'B', '4', 'H') /* [63:0] A:B:G:R 16:16:16:16 little endian */

/* packed YCbCr */
#define DRM_FORMAT_YUYV		fourcc_code('Y', 'U', 'Y', 'V') /* [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian */
#define DRM_FORMAT_YVYU		fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */
#define DRM_FORMAT_UYVY		fourcc_code('U', 'Y', 'V', 'Y') /* [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian */
#define DRM_FORMAT_VYUY		fourcc_code('V', 'Y', 'U', 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */

#define DRM_FORMAT_AYUV		fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
#define DRM_FORMAT_XYUV8888	fourcc_code('X', 'Y', 'U', 'V') /* [31:0] X:Y:Cb:Cr 8:8:8:8 little endian */
#define DRM_FORMAT_VUY888	fourcc_code('V', 'U', '2', '4') /* [23:0] Cr:Cb:Y 8:8:8 little endian */
#define DRM_FORMAT_VUY101010	fourcc_code('V', 'U', '3', '0') /* Y followed by U then V, 10:10:10. Non-linear modifier only */

/*
 * packed Y2xx indicate for each component, xx valid data occupy msb
 * 16-xx padding occupy lsb
 */
#define DRM_FORMAT_Y210         fourcc_code('Y', '2', '1', '0') /* [63:0] Cr0:0:Y1:0:Cb0:0:Y0:0 10:6:10:6:10:6:10:6 little endian per 2 Y pixels */
#define DRM_FORMAT_Y212         fourcc_code('Y', '2', '1', '2') /* [63:0] Cr0:0:Y1:0:Cb0:0:Y0:0 12:4:12:4:12:4:12:4 little endian per 2 Y pixels */
#define DRM_FORMAT_Y216         fourcc_code('Y', '2', '1', '6') /* [63:0] Cr0:Y1:Cb0:Y0 16:16:16:16 little endian per 2 Y pixels */

/*
 * packed Y4xx indicate for each component, xx valid data occupy msb
 * 16-xx padding occupy lsb except Y410
 */
#define DRM_FORMAT_Y410         fourcc_code('Y', '4', '1', '0') /* [31:0] A:Cr:Y:Cb 2:10:10:10 little endian */
#define DRM_FORMAT_Y412         fourcc_code('Y', '4', '1', '2') /* [63:0] A:0:Cr:0:Y:0:Cb:0 12:4:12:4:12:4:12:4 little endian */
#define DRM_FORMAT_Y416         fourcc_code('Y', '4', '1', '6') /* [63:0] A:Cr:Y:Cb 16:16:16:16 little endian */

#define DRM_FORMAT_XVYU2101010	fourcc_code('X', 'V', '3', '0') /* [31:0] X:Cr:Y:Cb 2:10:10:10 little endian */
#define DRM_FORMAT_XVYU12_16161616	fourcc_code('X', 'V', '3', '6') /* [63:0] X:0:Cr:0:Y:0:Cb:0 12:4:12:4:12:4:12:4 little endian */
#define DRM_FORMAT_XVYU16161616	fourcc_code('X', 'V', '4', '8') /* [63:0] X:Cr:Y:Cb 16:16:16:16 little endian */

/*
 * packed YCbCr420 2x2 tiled formats
 * first 64 bits will contain Y,Cb,Cr components for a 2x2 tile
 */
/* [63:0]   A3:A2:Y3:0:Cr0:0:Y2:0:A1:A0:Y1:0:Cb0:0:Y0:0  1:1:8:2:8:2:8:2:1:1:8:2:8:2:8:2 little endian */
#define DRM_FORMAT_Y0L0		fourcc_code('Y', '0', 'L', '0')
/* [63:0]   X3:X2:Y3:0:Cr0:0:Y2:0:X1:X0:Y1:0:Cb0:0:Y0:0  1:1:8:2:8:2:8:2:1:1:8:2:8:2:8:2 little endian */
#define DRM_FORMAT_X0L0		fourcc_code('X', '0', 'L', '0')

/* [63:0]   A3:A2:Y3:Cr0:Y2:A1:A0:Y1:Cb0:Y0  1:1:10:10:10:1:1:10:10:10 little endian */
#define DRM_FORMAT_Y0L2		fourcc_code('Y', '0', 'L', '2')
/* [63:0]   X3:X2:Y3:Cr0:Y2:X1:X0:Y1:Cb0:Y0  1:1:10:10:10:1:1:10:10:10 little endian */
#define DRM_FORMAT_X0L2		fourcc_code('X', '0', 'L', '2')

/*
 * 1-plane YUV 4:2:0
 * In these formats, the component ordering is specified (Y, followed by U
 * then V), but the exact Linear layout is undefined.
 * These formats can only be used with a non-Linear modifier.
 */
#define DRM_FORMAT_YUV420_8BIT	fourcc_code('Y', 'U', '0', '8')
#define DRM_FORMAT_YUV420_10BIT	fourcc_code('Y', 'U', '1', '0')

/*
 * 2 plane RGB + A
 * index 0 = RGB plane, same format as the corresponding non _A8 format has
 * index 1 = A plane, [7:0] A
 */
#define DRM_FORMAT_XRGB8888_A8	fourcc_code('X', 'R', 'A', '8')
#define DRM_FORMAT_XBGR8888_A8	fourcc_code('X', 'B', 'A', '8')
#define DRM_FORMAT_RGBX8888_A8	fourcc_code('R', 'X', 'A', '8')
#define DRM_FORMAT_BGRX8888_A8	fourcc_code('B', 'X', 'A', '8')
#define DRM_FORMAT_RGB888_A8	fourcc_code('R', '8', 'A', '8')
#define DRM_FORMAT_BGR888_A8	fourcc_code('B', '8', 'A', '8')
#define DRM_FORMAT_RGB565_A8	fourcc_code('R', '5', 'A', '8')
#define DRM_FORMAT_BGR565_A8	fourcc_code('B', '5', 'A', '8')

/*
 * 2 plane YCbCr
 * index 0 = Y plane, [7:0] Y
 * index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian
 * or
 * index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian
 */
#define DRM_FORMAT_NV12		fourcc_code('N', 'V', '1', '2') /* 2x2 subsampled Cr:Cb plane */
#define DRM_FORMAT_NV21		fourcc_code('N', 'V', '2', '1') /* 2x2 subsampled Cb:Cr plane */
#define DRM_FORMAT_NV16		fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */
#define DRM_FORMAT_NV61		fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */
#define DRM_FORMAT_NV24		fourcc_code('N', 'V', '2', '4') /* non-subsampled Cr:Cb plane */
#define DRM_FORMAT_NV42		fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */
/*
 * 2 plane YCbCr
 * index 0 = Y plane, [39:0] Y3:Y2:Y1:Y0 little endian
 * index 1 = Cr:Cb plane, [39:0] Cr1:Cb1:Cr0:Cb0 little endian
 */
#define DRM_FORMAT_NV15		fourcc_code('N', 'V', '1', '5') /* 2x2 subsampled Cr:Cb plane */

/*
 * 2 plane YCbCr MSB aligned
 * index 0 = Y plane, [15:0] Y:x [10:6] little endian
 * index 1 = Cr:Cb plane, [31:0] Cr:x:Cb:x [10:6:10:6] little endian
 */
#define DRM_FORMAT_P210		fourcc_code('P', '2', '1', '0') /* 2x1 subsampled Cr:Cb plane, 10 bit per channel */

/*
 * 2 plane YCbCr MSB aligned
 * index 0 = Y plane, [15:0] Y:x [10:6] little endian
 * index 1 = Cr:Cb plane, [31:0] Cr:x:Cb:x [10:6:10:6] little endian
 */
#define DRM_FORMAT_P010		fourcc_code('P', '0', '1', '0') /* 2x2 subsampled Cr:Cb plane 10 bits per channel */

/*
 * 2 plane YCbCr MSB aligned
 * index 0 = Y plane, [15:0] Y:x [12:4] little endian
 * index 1 = Cr:Cb plane, [31:0] Cr:x:Cb:x [12:4:12:4] little endian
 */
#define DRM_FORMAT_P012		fourcc_code('P', '0', '1', '2') /* 2x2 subsampled Cr:Cb plane 12 bits per channel */

/*
 * 2 plane YCbCr MSB aligned
 * index 0 = Y plane, [15:0] Y little endian
 * index 1 = Cr:Cb plane, [31:0] Cr:Cb [16:16] little endian
 */
#define DRM_FORMAT_P016		fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cr:Cb plane 16 bits per channel */

/* 2 plane YCbCr420.
 * 3 10 bit components and 2 padding bits packed into 4 bytes.
 * index 0 = Y plane, [31:0] x:Y2:Y1:Y0 2:10:10:10 little endian
 * index 1 = Cr:Cb plane, [63:0] x:Cr2:Cb2:Cr1:x:Cb1:Cr0:Cb0 [2:10:10:10:2:10:10:10] little endian
 */
#define DRM_FORMAT_P030		fourcc_code('P', '0', '3', '0') /* 2x2 subsampled Cr:Cb plane 10 bits per channel packed */

/* 3 plane non-subsampled (444) YCbCr
 * 16 bits per component, but only 10 bits are used and 6 bits are padded
 * index 0: Y plane, [15:0] Y:x [10:6] little endian
 * index 1: Cb plane, [15:0] Cb:x [10:6] little endian
 * index 2: Cr plane, [15:0] Cr:x [10:6] little endian
 */
#define DRM_FORMAT_Q410		fourcc_code('Q', '4', '1', '0')

/* 3 plane non-subsampled (444) YCrCb
 * 16 bits per component, but only 10 bits are used and 6 bits are padded
 * index 0: Y plane, [15:0] Y:x [10:6] little endian
 * index 1: Cr plane, [15:0] Cr:x [10:6] little endian
 * index 2: Cb plane, [15:0] Cb:x [10:6] little endian
 */
#define DRM_FORMAT_Q401		fourcc_code('Q', '4', '0', '1')

/*
 * 3 plane YCbCr
 * index 0: Y plane, [7:0] Y
 * index 1: Cb plane, [7:0] Cb
 * index 2: Cr plane, [7:0] Cr
 * or
 * index 1: Cr plane, [7:0] Cr
 * index 2: Cb plane, [7:0] Cb
 */
#define DRM_FORMAT_YUV410	fourcc_code('Y', 'U', 'V', '9') /* 4x4 subsampled Cb (1) and Cr (2) planes */
#define DRM_FORMAT_YVU410	fourcc_code('Y', 'V', 'U', '9') /* 4x4 subsampled Cr (1) and Cb (2) planes */
#define DRM_FORMAT_YUV411	fourcc_code('Y', 'U', '1', '1') /* 4x1 subsampled Cb (1) and Cr (2) planes */
#define DRM_FORMAT_YVU411	fourcc_code('Y', 'V', '1', '1') /* 4x1 subsampled Cr (1) and Cb (2) planes */
#define DRM_FORMAT_YUV420	fourcc_code('Y', 'U', '1', '2') /* 2x2 subsampled Cb (1) and Cr (2) planes */
#define DRM_FORMAT_YVU420	fourcc_code('Y', 'V', '1', '2') /* 2x2 subsampled Cr (1) and Cb (2) planes */
#define DRM_FORMAT_YUV422	fourcc_code('Y', 'U', '1', '6') /* 2x1 subsampled Cb (1) and Cr (2) planes */
#define DRM_FORMAT_YVU422	fourcc_code('Y', 'V', '1', '6') /* 2x1 subsampled Cr (1) and Cb (2) planes */
#define DRM_FORMAT_YUV444	fourcc_code('Y', 'U', '2', '4') /* non-subsampled Cb (1) and Cr (2) planes */
#define DRM_FORMAT_YVU444	fourcc_code('Y', 'V', '2', '4') /* non-subsampled Cr (1) and Cb (2) planes */


/*
 * Format Modifiers:
 *
 * Format modifiers describe, typically, a re-ordering or modification
 * of the data in a plane of an FB.  This can be used to express tiled/
 * swizzled formats, or compression, or a combination of the two.
 *
 * The upper 8 bits of the format modifier are a vendor-id as assigned
 * below.  The lower 56 bits are assigned as vendor sees fit.
 */

/* Vendor Ids: */
#define DRM_FORMAT_MOD_NONE           0
#define DRM_FORMAT_MOD_VENDOR_NONE    0
#define DRM_FORMAT_MOD_VENDOR_INTEL   0x01
#define DRM_FORMAT_MOD_VENDOR_AMD     0x02
#define DRM_FORMAT_MOD_VENDOR_NVIDIA  0x03
#define DRM_FORMAT_MOD_VENDOR_SAMSUNG 0x04
#define DRM_FORMAT_MOD_VENDOR_QCOM    0x05
#define DRM_FORMAT_MOD_VENDOR_VIVANTE 0x06
#define DRM_FORMAT_MOD_VENDOR_BROADCOM 0x07
#define DRM_FORMAT_MOD_VENDOR_ARM     0x08
#define DRM_FORMAT_MOD_VENDOR_ALLWINNER 0x09
#define DRM_FORMAT_MOD_VENDOR_AMLOGIC 0x0a

/* add more to the end as needed */

#define DRM_FORMAT_RESERVED	      ((1ULL << 56) - 1)

#define fourcc_mod_code(vendor, val) \
	((((__u64)DRM_FORMAT_MOD_VENDOR_## vendor) << 56) | ((val) & 0x00ffffffffffffffULL))

/*
 * Format Modifier tokens:
 *
 * When adding a new token please document the layout with a code comment,
 * similar to the fourcc codes above. drm_fourcc.h is considered the
 * authoritative source for all of these.
 *
 * Generic modifier names:
 *
 * DRM_FORMAT_MOD_GENERIC_* definitions are used to provide vendor-neutral names
 * for layouts which are common across multiple vendors. To preserve
 * compatibility, in cases where a vendor-specific definition already exists and
 * a generic name for it is desired, the common name is a purely symbolic alias
 * and must use the same numerical value as the original definition.
 *
 * Note that generic names should only be used for modifiers which describe
 * generic layouts (such as pixel re-ordering), which may have
 * independently-developed support across multiple vendors.
 *
 * In future cases where a generic layout is identified before merging with a
 * vendor-specific modifier, a new 'GENERIC' vendor or modifier using vendor
 * 'NONE' could be considered. This should only be for obvious, exceptional
 * cases to avoid polluting the 'GENERIC' namespace with modifiers which only
 * apply to a single vendor.
 *
 * Generic names should not be used for cases where multiple hardware vendors
 * have implementations of the same standardised compression scheme (such as
 * AFBC). In those cases, all implementations should use the same format
 * modifier(s), reflecting the vendor of the standard.
 */

#define DRM_FORMAT_MOD_GENERIC_16_16_TILE DRM_FORMAT_MOD_SAMSUNG_16_16_TILE

/*
 * Invalid Modifier
 *
 * This modifier can be used as a sentinel to terminate the format modifiers
 * list, or to initialize a variable with an invalid modifier. It might also be
 * used to report an error back to userspace for certain APIs.
 */
#define DRM_FORMAT_MOD_INVALID	fourcc_mod_code(NONE, DRM_FORMAT_RESERVED)

/*
 * Linear Layout
 *
 * Just plain linear layout. Note that this is different from no specifying any
 * modifier (e.g. not setting DRM_MODE_FB_MODIFIERS in the DRM_ADDFB2 ioctl),
 * which tells the driver to also take driver-internal information into account
 * and so might actually result in a tiled framebuffer.
 */
#define DRM_FORMAT_MOD_LINEAR	fourcc_mod_code(NONE, 0)

/* Intel framebuffer modifiers */

/*
 * Intel X-tiling layout
 *
 * This is a tiled layout using 4Kb tiles (except on gen2 where the tiles 2Kb)
 * in row-major layout. Within the tile bytes are laid out row-major, with
 * a platform-dependent stride. On top of that the memory can apply
 * platform-depending swizzling of some higher address bits into bit6.
 *
 * Note that this layout is only accurate on intel gen 8+ or valleyview chipsets.
 * On earlier platforms the is highly platforms specific and not useful for
 * cross-driver sharing. It exists since on a given platform it does uniquely
 * identify the layout in a simple way for i915-specific userspace, which
 * facilitated conversion of userspace to modifiers. Additionally the exact
 * format on some really old platforms is not known.
 */
#define I915_FORMAT_MOD_X_TILED	fourcc_mod_code(INTEL, 1)

/*
 * Intel Y-tiling layout
 *
 * This is a tiled layout using 4Kb tiles (except on gen2 where the tiles 2Kb)
 * in row-major layout. Within the tile bytes are laid out in OWORD (16 bytes)
 * chunks column-major, with a platform-dependent height. On top of that the
 * memory can apply platform-depending swizzling of some higher address bits
 * into bit6.
 *
 * Note that this layout is only accurate on intel gen 8+ or valleyview chipsets.
 * On earlier platforms the is highly platforms specific and not useful for
 * cross-driver sharing. It exists since on a given platform it does uniquely
 * identify the layout in a simple way for i915-specific userspace, which
 * facilitated conversion of userspace to modifiers. Additionally the exact
 * format on some really old platforms is not known.
 */
#define I915_FORMAT_MOD_Y_TILED	fourcc_mod_code(INTEL, 2)

/*
 * Intel Yf-tiling layout
 *
 * This is a tiled layout using 4Kb tiles in row-major layout.
 * Within the tile pixels are laid out in 16 256 byte units / sub-tiles which
 * are arranged in four groups (two wide, two high) with column-major layout.
 * Each group therefore consits out of four 256 byte units, which are also laid
 * out as 2x2 column-major.
 * 256 byte units are made out of four 64 byte blocks of pixels, producing
 * either a square block or a 2:1 unit.
 * 64 byte blocks of pixels contain four pixel rows of 16 bytes, where the width
 * in pixel depends on the pixel depth.
 */
#define I915_FORMAT_MOD_Yf_TILED fourcc_mod_code(INTEL, 3)

/*
 * Intel color control surface (CCS) for render compression
 *
 * The framebuffer format must be one of the 8:8:8:8 RGB formats.
 * The main surface will be plane index 0 and must be Y/Yf-tiled,
 * the CCS will be plane index 1.
 *
 * Each CCS tile matches a 1024x512 pixel area of the main surface.
 * To match certain aspects of the 3D hardware the CCS is
 * considered to be made up of normal 128Bx32 Y tiles, Thus
 * the CCS pitch must be specified in multiples of 128 bytes.
 *
 * In reality the CCS tile appears to be a 64Bx64 Y tile, composed
 * of QWORD (8 bytes) chunks instead of OWORD (16 bytes) chunks.
 * But that fact is not relevant unless the memory is accessed
 * directly.
 */
#define I915_FORMAT_MOD_Y_TILED_CCS	fourcc_mod_code(INTEL, 4)
#define I915_FORMAT_MOD_Yf_TILED_CCS	fourcc_mod_code(INTEL, 5)

/*
 * Intel color control surfaces (CCS) for Gen-12 render compression.
 *
 * The main surface is Y-tiled and at plane index 0, the CCS is linear and
 * at index 1. A 64B CCS cache line corresponds to an area of 4x1 tiles in
 * main surface. In other words, 4 bits in CCS map to a main surface cache
 * line pair. The main surface pitch is required to be a multiple of four
 * Y-tile widths.
 */
#define I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS fourcc_mod_code(INTEL, 6)

/*
 * Intel color control surfaces (CCS) for Gen-12 media compression
 *
 * The main surface is Y-tiled and at plane index 0, the CCS is linear and
 * at index 1. A 64B CCS cache line corresponds to an area of 4x1 tiles in
 * main surface. In other words, 4 bits in CCS map to a main surface cache
 * line pair. The main surface pitch is required to be a multiple of four
 * Y-tile widths. For semi-planar formats like NV12, CCS planes follow the
 * Y and UV planes i.e., planes 0 and 1 are used for Y and UV surfaces,
 * planes 2 and 3 for the respective CCS.
 */
#define I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS fourcc_mod_code(INTEL, 7)

/*
 * Tiled, NV12MT, grouped in 64 (pixels) x 32 (